Patents by Inventor Rudolf E. Gartzke

Rudolf E. Gartzke has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Ratchet tool
    Patent number: 4265148
    Abstract: A ratchet tool is designed for one-handed manipulation by embodying push-pull biasing of the handle for selecting the direction of rotational drive and twisting or arcuate swinging actuation of the handle for rotationally driving the tool head.
    Type: Grant
    Filed: December 4, 1978
    Date of Patent: May 5, 1981
    Inventor: Rudolf E. Gartzke